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Destratification is the reverse of the natural process of thermal stratification, which is the layering of differing (typically increasing) air temperatures from floor to ceiling.
Reduced heat flow also helps prevent condensation [3] [4] [5] which is triggered when the temperature of the inside surface falls below the dew point. Assuming an outside temperature of 0 °C with wind velocity 7 m/s (15 mph; 24 km/h) and inside temperature 20 °C condensation occurs at only 30%RH relative humidity with a single-glazed system ...
[2] A vapor retarder and an air barrier serve to reduce this problem, but are not necessarily interchangeable. Vapor retarders slow the rate of vapor diffusion into the thermal envelope of a structure. Other wetting mechanisms, such as wind-borne rain, capillary wicking of ground moisture, air transport (infiltration), are equally important.
Detail showing some of the causes of damp penetration. Structural dampness is the presence of unwanted moisture in the structure of a building, either the result of intrusion from outside or condensation from within the structure.
Basement waterproofing involves techniques and materials used to prevent water from penetrating the basement of a house ... condensation is the main source of wetness ...
Faster construction than stick-built house. Less lumber required. Insulate acoustically. Impermeable to moisture. Can truck prefabricated panels to construction site and assemble on site. Create shell of solid insulation around house, while reducing bypasses common with stick-frame construction. The result is an inherently energy-efficient house.